The Automatic Drain Valves have a float that automatically opens the drain when the bowl begins to fill. Install them at low points in your line after separators, dryers, filters, and after coolers. The drain valves remove mixtures of water and compressor lubricants from compressed air systems. The drain valve eliminates the need for a maintenance worker to patrol the plant, manually dumping liquid from the air system. The offered Automatic Drain Valves are very efficient and durable.